In biotechnology, a chimeric organism or virus is one which is either created containing cell population from two or more distinct organisms. Or in the case of viral or genome modification, a chimera is a new hybrid microorganism created by joining nucleic acid fragments (DNA/RNA) from two or more different viruses or organisms in which each of at least two of the fragments contain essential genes necessary for replication.

Recombinant organisms also contain spliced fragments from the same organism type within a new recombined strain. These still resemble a cell with a single set of instruction for genetic replication, like copy and pasting together select parts from each. A non realistic example would be to create a human with eyes from one person, hair type from another, and various other traits selected and spliced and recombined into one new human. Though this kind of genetic manipulation isn't really possible in humans with current mainstream technology.

Not saying the Ebola scare has nothing to do with Chimera group or their cronies, I personally do not know. But the "chimeric forms" unfortunately do not refer to the chimera group in this case.

I hope this clears some stuff up for yourself any any other curious readers.